Prompt: Write a short story about a man who discovers a magical portal

The man had always been fascinated by portals, ever since he was a child. He had never been able to find one himself, but he had always wanted to. Finally, after years of searching, he found a portal in his backyard. He stepped through and found himself in a strange, magical place. He walked around for a while, marveling at the sights and sounds, before he found a doorway that led back to reality. He was very excited to have discovered the portal, and he was hopeful that he could find others like it.